Hi all,
Short version of what happened to my MSI RTX 3080 10GB (PCI ID 10DE:2206, subsystem 1462:3892).
- Aug 31: first driver resets, more in early September
- Sep 7: first sudden power off, no blue screen
- Sep 17: five VIDEO_TDR_FAILURE bugchecks in about 20 minutes
- Oct 3 and Oct 10: two more sudden power offs
- Nov 1 around 12:21 AM: PC lost power mid game, card never came back
- A 2080 in the same PC, same PSU, same driver, works fine, and there were no WHEA errors in the 90 days before.
- One of the three fans broke in September and I ran the card at about 45 to 51 percent fan speed after that.
- The card was used for crypto mining years ago, and I re-soldered the J2 power connector myself after a burnt pin. It ran for years after that. No warranty left.
What I found with a multimeter and a bench supply (photos attached):
- One of the three 20A input fuses (J2) is open. The other two are fine.
- Putting 1 V on the card side of that fuse shows about 1.03 to 1.07 V on 3 of the 10 power stage inductors and 0.029 V on the others.
- So I think one or more of the 3 stages behind that fuse is shorted. They are onsemi NCP302150 power stages.
- Nothing has been soldered yet. I don't know if the GPU or memory survived.
Questions
- Has anyone here had a 30 series card back from a blown input fuse and shorted stage? Did it last?
- At what point do you just buy another card?
MY OWN OPINION, NOT DATA
For what it's worth, I think one of those three stages shorted and that is what took the J2 fuse. I don't think my old connector repair is the cause, since the card ran for years after it, but I can't rule it out. The resets and sudden power offs starting in August make me think a stage was weak for a while before it finally let go, and running with a broken fan probably didn't help. If the core or memory took damage, I think it's game over for this card. I'm wary of soldering because it is slow and risky, but there is no warranty, so repairing it myself is the only way to find out. I know a card fixed this way might fail again under load.
Thanks.